PP Double Wall Corrugated Pipe Extrusion Line (SBG400) Qingdao Huasu Machinery Fabricate Co., Ltd. Base Info Model NO.:SBG400Product Type:PP PipeAutomation:AutomaticComputerized:ComputerizedCertification:CETrademark:HUASUSpecification:CE, ISO9000Origin:QingdaoHS Code:84779000 Description Pre:SBG 500 UPVC Double Wall Corrugated Pipe Extruder Line Next:PP Double Wall Corrugated Pipe Extrusion Line (SBG315)